Finding the Fourth Proportional to 82,495.20, 123,744.72 and 20,166.24

Step by Step Solution

1. Step 1: Write the proportion equation
   82,495.20 : 123,744.72 = 20,166.24 : x
2. Step 2: Convert to fraction form
   82,495.20/123,744.72 = 20,166.24/x
3. Step 3: Cross multiply
   82,495.20x = 123,744.72 × 20,166.24
4. Step 4: Simplify right side
   82,495.20x = 2,495,465,722.25
5. Step 5: Solve for x
   x = 2,495,465,722.25/82,495.20
6. Step 6: Final answer
   x = 30,249.83